American Redstart nest placement in southwestern New Brunswick

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Abstract
We gathered data from 208 American Redstart (Setophaga ruticilla) nests from 1979 to 1985 in southwestern New Brunswick to examine patterns in nest-tree features. Most nests were located in either speckled alder (30.7%) or white birch (22.1%). Nest-site features (nest height, relative nest height, nest access distance) were relatively consistent for those nests located in some tree taxa (alder) but considerable intrataxa variability (cedar, white birch) and several significant intertaxa differences were observed. These differences may reflect each species' branching geometry. Our data were not entirely consistent with existing models of nest-height distribution.